2800: {Date: '2022-01-14', Open: 514.48999, High: 522.570007, Low: 511.269989, Close: 520.599976, …}
2801: {Date: '2022-01-18', Open: 510.390015, High: 519.390015, Low: 504.980011, Close: 513.340027, …}
2802: {Date: '2022-01-19', Open: 516.47998, High: 528.919983, Low: 515.299988, Close: 516.580017, …}
2803: {Date: '2022-01-20', Open: 522.380005, High: 532.030029, Low: 509.640015, Close: 510.850006, …}
2804: {Date: '2022-01-21', Open: 508.5, High: 513.859985, Low: 499.269989, Close: 499.910004, …}
2805: {Date: '2022-01-24', Open: 491.070007, High: 520.429993, Low: 483.309998, Close: 519.659973, …}
2806: {Date: '2022-01-25', Open: 505.51001, High: 514.26001, Low: 500.01001, Close: 502.720001, …}
I have the following historical price data of ADBE spanning more than 10 years. I am trying to get the min and max value every year according to their reporting date, period ending Nov each year.
I am trying to get the output in an array:
[2010 min price, 2011 min price, 2012 min price ...]
const startDate = new Date("2010-12-01");
const endDate = new Date("2022-04-30");
const data2 = data.filter(a => {
const date = new Date(a.Date);
return (date >= startDate && date <= endDate);
});
console.log(data)
function findMinMax(key) {
const datas = data2.map((node) => node[key]);
return {
min: Math.min(...datas),
max: Math.max(...datas),
}
}
const checkit = findMinMax('Close')
As per the code, how can I do it without having to change the start and end date for each year just to get the min max value?
Checkout the solution below it calculates min/max for all fields based on the reporting month.
const data = [
{ Date: "2022-01-14", Open: 100, High: 500, Low: 50, Close: 1000 },
{ Date: "2021-12-05", Open: 200, High: 150, Low: 150, Close: 2000 },
{ Date: "2021-10-21", Open: 300, High: 550, Low: 70, Close: 200 },
{ Date: "2021-02-18", Open: 250, High: 600, Low: 10, Close: 500 },
];
const START_REPORTING_MONTH = 11; // 11 for December
const output = data.reduce((res, { Date: date, ...rest }) => {
const d = new Date(date);
const year = d.getFullYear();
const month = d.getMonth();
let reportingPeriod;
if (month >= START_REPORTING_MONTH) {
reportingPeriod = `${year}-${year + 1}`;
} else {
reportingPeriod = `${year - 1}-${year}`;
}
if (!res[reportingPeriod]) {
res[reportingPeriod] = { min: { ...rest }, max: { ...rest } };
}
Object.entries(rest).forEach(([k, v]) => {
if (v < res[reportingPeriod].min[k]) {
res[reportingPeriod].min[k] = v;
}
if (v > res[reportingPeriod].max[k]) {
res[reportingPeriod].max[k] = v;
}
});
return res;
}, {});
console.log(output);.as-console-wrapper { max-height: 100% !important; top: 0; }